170425-N-CJ185-0013 SANTA RITA, Guam (April 25, 2017) Electronics Technician 3rd Class Anthony Juarez and Construction Electrician 2nd Class Kevin Aquirre, both assigned to Naval Mobile Construction Battalion (NMCB) 1 Detachment Guam, hoist an AT-420 antenna at Naval Base Guam. AT-420s utilize ultra high frequency and very high frequencies to increase communication abilities. (U.S. Navy photo by Mass Communication Specialist 1st Class Torrey W. Lee/Released)